“If they (Americans) are sincere in what they say, as we have announced, we will be ready to interact,” Salehi said on Tuesday.

On April 17, a group of 35 former US diplomats, military officers and other officials, from both Republican and Democratic parties, advised the US administration in a letter to boost diplomatic efforts regarding Iran.

Former Republican Senator Richard Lugar, former CIA Director Michael Hayden, former US Ambassador to Iraq and Afghanistan Ryan Crocker and former National Security Adviser Zbigniew Brzezinski were among the individuals who signed the letter.

Referring to the latest negotiations between Iran and the P5+1 group of powers, Salehi said that EU foreign policy chief Catherine Ashton agreed to inform Secretary of Iran's Supreme National Security Council (SNSC) Saeed Jalili of the outcome of her subsequent talks with the foreign ministers of the P5+1 (Russia, China, France, Britain, the US and Germany), but unfortunately failed to do so.

The Iranian Foreign Minister further said expressing readiness for interaction only for publicity purposes and not taking any action is a “serious mistake.”

The United States, the Zionist regime and some of their allies have repeatedly accused Iran of pursuing non-civilian objectives in its nuclear energy program.

Over the false allegation, Washington and the European Union have imposed illegal unilateral sanctions against the Islamic Republic.

Iran refutes the allegation and argues that as a signatory to the nuclear Non-Proliferation Treaty (NPT) and a member of the International Atomic Energy Agency (IAEA), it is entitled to develop and acquire nuclear technology for peaceful purposes.